Response of Male Dusky Warblers (Phylloscopus fuscatus) to Invaders with Different Song Length
Laikun Ma1,2, Jiaojiao Wang1, Shanshan Lyu2 and Jianhua Hou1*
1College of Life Science, Hebei University, Baoding 071000, China
2School of Biology and Food Science, Hebei Normal University for Nationalities, Chengde 067000, China
Fig. 1.
Sounds with three different song length for playback. A, shortened song length; B, normal song length; C, extended song length.
Fig. 2.
Song response, flight response, and approach response of male dusky warblers to intruders with different sentence lengths. A, shortened song length; B, normal song length; C, extended song length.
Fig. 3.
Mean song length of male dusky warblers at three playback stages.
Fig. 4.
The relationship between maximum song length and PC1 (song response).